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What Does a Fractional CMO Actually Do? The First 90 Days

By Robyn Lighton · 20 January 2026 · 6 min read

A fractional CMO is a senior marketing leader who works with your company part-time, on a fixed scope. They set growth strategy and priorities, put reliable reporting in place and, where embedded, lead the team and agencies. You get executive judgement without a full-time executive salary.

What is a fractional CMO responsible for?

Scope varies by company, but most engagements cover six things:

  • Strategy and positioning. Who you sell to, why they buy, and how that shapes your marketing.
  • Priorities and budget. A short list of what to do next, and permission to stop the rest.
  • Reporting and KPIs. One set of definitions and numbers that leadership and the board trust.
  • Team and partners. Directing in-house marketers, freelancers and agencies, or helping you build the team.
  • Cross-functional alignment. Keeping marketing, sales, product and finance working from the same plan.
  • Hiring. Defining the role and supporting the search for a permanent leader when you are ready.

What does the first 90 days look like?

The exact shape depends on scope, but a typical engagement moves through three phases.

PhaseFocusWhat you should see
Days 1 to 30: Listen and diagnoseStakeholder interviews, funnel and data review, team and tooling reviewA clear read on what is driving growth and what is holding it back
Days 31 to 60: Decide and set upAgree priorities, define metrics, set up reporting and an operating rhythmA short, prioritised roadmap and a first dashboard people trust
Days 61 to 90: Run and hand overLead execution against the priorities, review results, adjustA weekly and monthly rhythm that runs, clearer ownership and early results

Many companies start with a Growth Diagnostic to complete the first phase, then decide whether they need ongoing leadership.

Advisory or embedded: which kind of fractional CMO do you need?

Advisory means a sounding board at the leadership table. The fractional CMO reviews plans and numbers, challenges decisions and supports the founder, usually for a few hours a week.

Embedded means the fractional CMO owns targets, budget and the team for an agreed period, and works with you several days a week.

The right choice depends on how much ownership you need. We explain how that drives price in how much a fractional CMO costs in Europe.

What a fractional CMO does not do

  • They are not full-time. They will not be in every meeting, so scope and decision rights need to be clear.
  • They do not replace your specialists. They direct and prioritise paid, SEO, content, design and lifecycle work. How much they do hands-on depends on the scope you agree.
  • They cannot work without access. Without data, people and authority to decide, no senior hire can fix anything.

How do you know it is working?

At day 90, ask four questions:

  1. Can leadership name the top three growth priorities and say why?
  2. Is there one number the board trusts?
  3. Does everyone know who owns what?
  4. Does the operating rhythm run without the fractional CMO in the room?

If the answer to most of these is yes, the engagement is doing its job. A good fractional leader should make themselves less necessary over time.

Key takeaways

  • A fractional CMO provides senior marketing leadership part-time, on a fixed scope.
  • The core job is strategy, priorities, reporting, team direction and alignment, not campaign execution.
  • Advisory and embedded engagements differ in ownership, not just days per week.
  • The first 90 days should end with clear priorities, a trusted number and a rhythm your team can keep.

Frequently asked questions

Is a fractional CMO the same as a marketing consultant?

Not quite. A consultant typically advises and hands over a document. A fractional CMO takes responsibility for decisions and for how the work runs during an agreed period, and measures success against outcomes.

How many days a week does a fractional CMO work?

It depends on scope. Advisory engagements can be a few hours a week. Embedded engagements are usually several days a week. The right level depends on how much of the function they need to own.

Will a fractional CMO manage my marketing team?

In embedded engagements, yes: they lead the team, set priorities and run the operating rhythm. In advisory engagements they support the person who leads the team, for example a founder or Head of Marketing.

How long does a fractional CMO engagement last?

Scope and timeline are agreed upfront. Many engagements run for several months, with a clear handover so your team can carry on without the fractional leader.

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